Improvement in street-sprinkling apparatus



' v 11., MANSFIELD. Street-sprinkling Appar atus.

Patented Feb. 25,

ATENT OFFICE.

DANA MANSFIELD, OF ST. LOUIS, MISSOURI.

V IMPROVEMENT IN STREET-SPRINKLING APPARATUS.

Specification forming part of Letters Patent No. 212,719, dated February 25, 1879; application filed January 11, 1879.

To all whom it may concern:

Be it known that 1, DANA MANsFInLn, of the city of St. Louis, in the State of Missouri, have invented a certain new and useful Improvement in Street-sprinkling Apparatus, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specifieation.

My improvement consists in a water-pipe fixed along the curb-stone to sprinkle the street from jet-holes in the pipe, the pipe having in connection with it a device to automatically allow the escape of the surplus water on the closing of the communicationbetween the sprinkling-pipe and its water-supply.

My improvement also applies to the construction of the valve, which is supported by a spring, so as to open when relieved from the pressure of the water from the street-main.

Figure 1 is partly in perspective and partly in transverse section, and shows the pipe fixed in the curb of the sidewalk. Fig. 2 is an enlarged side view of the pipe, with the valve-chamber in axial section. Figs. 3 and 4 show two modifications. These figures are part in perspective and part in transverse section.

A represents part of a sidewalk. B is the curb-stone. B may represent a timber, stone, or earthenware piece or block laid along behind a curb stone. O is the water-pipe. I prefer to make the water-pipe of iron; but other suitable material may be used.

The pipe 0 receives water from the city mains, or from some other source from which water may be had under pressure. The water escapes from the jet-holes c in the outer side of the pipe, and is thrown upon the street in fine stream D is a valve-chamber beneath the pipe, and in communication with it. These valve chambers are provided at intervals. They have valve-ports d at the bottom, for the escape of surplus water from the pipe 0 after each sprinkling operation.

During the operation of sprinkling, the water is prevented from escaping through the port (1 by a valve, E, the pressure of the water forcing the valve down upon its seat 0, as shown. The valveE is attached to the inside of the valve-chamber by a spring, E, whose tendency is to hold the valve up out of contact with the seat, to allow the escape of water through the valve-port cl.

The strength of the spring is such that it is overcome by the pressure of the water when the pipe 0 is in communication with thestreetmain; but as soon as such communication is closed the valve is lifted by the spring, and the water is discharged from the pipe 0 and valve-chamber D.

The device for the automatic discharge of At F are shown passages for the water from V the port (I to the gutter G.

In Figs. 3 and 4 the pipe 0 is shown inserted in the curb-stone. In Fig. 3 the outer face of the pipe is about flush with that of the curb-stone, while in Fig. 4 it is more deeply set, and vertical slots 1) are made in the curb,- stone for the passage of the water-jets.

I claim as my invention- 1. The water-pipe O, fixed at the edge of the sidewalk A, and provided with jet-holes c, with device to automatically allow the escape of surplus water, substantially as and for the purpose set forth.

2. In combination with jet-pipe O, the valve E, with lifting-spring E, operating automatically, for the purpose set forth.

3. The combination of sidewalk A, pipe 0, with jet-holes c, valve-chamber D, and spring valve E, all arranged substantially as and for the purpose set forth.

DANA MANSFIELD.

Witnesses:

G120. H. KNIGHT, W. H. GnAnsEY. 

